Amarin Corporation plc (AMRN) ownership: Sarissa Capital Management LP 12% · institutions 1% · index and ETF funds 0% (13F 2026-03-31). Insider activity, 90 days: 0 sales, 0 open-market buys. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Sarissa Capital Management LP | 1673395.00 | $24.20M | 0.4% | 2026-03-31 |
| Acadian Asset Management | 636769.00 | $9.18M | 0.2% | 2026-03-31 |
| Kynam Capital Management, LP | 472382.00 | $6.83M | 0.1% | 2026-03-31 |
| Millennium Management | 300536.00 | $4.35M | 0.1% | 2026-03-31 |
| Morgan Stanley | 293172.00 | $4.24M | 0.1% | 2026-03-31 |
| Point72 | 240761.00 | $3.48M | 0.1% | 2026-03-31 |
| Waterfront Wealth Inc. | 203338.00 | $2.94M | 0.0% | 2026-03-31 |
| Eversept Partners, LP | 147715.00 | $2.14M | 0.0% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-01 | |
| Sell | null | 2026-08-01 | |
| Sell | null | 2026-08-01 | |
| Sell | null | 2026-07-01 | |
| Sell | null | 2026-07-01 | |
| Sell | null | 2026-07-01 | |
| Sell | null | 2026-07-01 | |
| Sell | null | 2026-07-01 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.